Development Of Flexible Pavement Design Criteria Using Finite Element Method

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Development Of Flexible Pavement Design Criteria Using Finite Element Method

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Author : Seiji Noda
language : en
Publisher:
Release Date : 1994

Development Of Flexible Pavement Design Criteria Using Finite Element Method written by Seiji Noda and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Pavements, Asphalt categories.

Faa Finite Element Design Procedure For Rigid Pavements

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Author : Edward H. Guo
language : en
Publisher:
Release Date : 2007

Faa Finite Element Design Procedure For Rigid Pavements written by Edward H. Guo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Finite element method categories.

"FEDFAA, Finite Element Design-Federal Aviation Administration, is a computer program for both airport rigid and flexible pavement thickness design. NIKE3D (a general-purpose, three-dimensional finite element method (3D-FEM) computer program) is the selected engine for critical stress calculation for airport rigid pavement design. The calculated edge stresses are used in the FEDFAA failure model to determine the slab thickness. Since FEDFAA is a tool for thickness design rather than for analysis, certain program modifications and selection of available elements in NIKE3D have been made during FEDFAA development; it includes (1) selection of the nonconforming eight-node solid element to model all layers of the pavement except the subgrade, (2) introduction of the infinite element to model the infinitely deep subgrade, (3) mesh densities in vertical and horizontal directions, and (4) slab size and width of subbase extension have been determined to fit the needs of the design. A procedure has also been developed to calculate the critical stress of the pavement from the stresses calculated by NIKE3D at the element Gaussian points. Finally, the modified 3D finite element-based program was evaluated by using three criteria: (1) the model must be theoretically correct; (2) the final stress calculation engine with modifications and simplifications provides critical stress close enough to the precise one; and (3) it should be able to complete this computation under aircraft load within a few minutes. This report provides detailed descriptions for model selections, program modifications, and numerical evaluations. The report concludes that the final tool satisfies all three criteria; therefore, it is a reliable and applicable tool for airport rigid pavement design."--P. [ii].

Modeling And Design Of Flexible Pavements And Materials

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Author : Dallas N. Little
language : en
Publisher: Springer
Release Date : 2017-09-25

Modeling And Design Of Flexible Pavements And Materials written by Dallas N. Little and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-25 with Technology & Engineering categories.

This textbook lays out the state of the art for modeling of asphalt concrete as the major structural component of flexible pavements. The text adopts a pedagogy in which a scientific approach, based on materials science and continuum mechanics, predicts the performance of any configuration of flexible roadways subjected to cyclic loadings. The authors incorporate state-of the-art computational mechanics to predict the evolution of material properties, stresses and strains, and roadway deterioration. Designed specifically for both students and practitioners, the book presents fundamentally complex concepts in a clear and concise way that aids the roadway design community to assimilate the tools for designing sustainable roadways using both traditional and innovative technologies.

Flexible Pavement Analysis By The Three Dimentsional Finite Element Method

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Author : John B. Palmerton
language : en
Publisher:
Release Date : 1973

Flexible Pavement Analysis By The Three Dimentsional Finite Element Method written by John B. Palmerton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Finite element method categories.

Extension Of Stress Based Finite Element Model Using Resilient Modulus Material Characterization To Develop A Theoretical Framework For Realistic Response Modeling Of Flexible Pavements On Cohesive Subgrades

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Author : Kadri Parris
language : en
Publisher:
Release Date : 2015

Extension Of Stress Based Finite Element Model Using Resilient Modulus Material Characterization To Develop A Theoretical Framework For Realistic Response Modeling Of Flexible Pavements On Cohesive Subgrades written by Kadri Parris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

Abstract: Pavement design methodologies have over the past decades seen philosophical evolutions and eventually practical implementation of new postulates. As more contributions are made by pavement researchers to the State-of-the-Art in pavement design, there exist a chasm between pavement engineers and state-of-the-art pavement research in terms of incorporation into pavement design guidelines. In developing countries such as Guyana in South America, as well as several departments of transportation, municipalities and townships in the United States, pavement engineers still use the American Association of State Highway and Transportation Officials (AASHTO) Pavement Design Guide (1993). This empirical pavement design guide and its previous iterations were based primarily on data that was collected and processed from the then American Association of State Highway Officials (AASHO) Road Test conducted between 1958 and 1960. The limitations with continued use of this method are obvious since the data was gathered under specific environmental conditions, a specific subgrade type, and with specific materials as well as specific pavement cross-sections. The continued use of this guide does not account for advances in material technology, different types and volumes of vehicular traffic, changing climatic conditions and also can be costly in expanding road networks. To solve this dilemma pavement researchers started working toward a more mechanistic approach for design and through the work of National Cooperative Highway Research Program (NCHRP), culminated in the publishing of the Mechanistic-Empirical Pavement Design Guide (MEPDG) in 2004. The finite element model used in the MEPDG is premised upon a displacement based theory. These theories are capable of making good predictions regarding global responses such as displacements and sometimes in-plane stresses but not the transverse stress distribution. To predict transverse stress distribution, stress based theories are more suitable for use in formulations. At The Ohio State University, Chyou (1989), Schoeppner (1991) and Butalia (1996) worked on different versions of the stress based model for composite laminates. This model was initially extended by Tu (2007) to good effect for analyzing the responses in pavement systems. In this research effort, this response model is being further extended to incorporate a material characterization model into the stiffness matrix for more accurate structural response predictions. The material characterization model (Kim 2004) allows the pavement designer to make predictions of Resilient Modulus, Mr, for cohesive subgrades without the need for conducting the test which can be both costly and complex. This approach renders a cost effective way of obtaining one of the most important parameters for employing a mechanistic approach which is also a major prohibition for many developing countries to move closer to the State-of-the-Art. This new synthesis allows for good predictions of global responses as well as transverse stress distribution which is critical for overcoming pavement layer debonding that can reduce pavement life significantly. Considering the results of the analysis compared to ABAQUS 3D Finite Element Models, this new synthesis forms the basis of a good pavement response model which can be used to further a more mechanistic approach for relatively small design agencies.

The Application Of The Finite Element Method And Flexible Pavement Design

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Author : T. E. Glynn
language : en
Publisher:
Release Date : 1973

The Application Of The Finite Element Method And Flexible Pavement Design written by T. E. Glynn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Finite element method categories.

Mechanistic Empirical Modeling And Design Model Development Of Geosynthetic Reinforced Flexible Pavements

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Author : Steven W. Perkins
language : en
Publisher:
Release Date : 2001

Mechanistic Empirical Modeling And Design Model Development Of Geosynthetic Reinforced Flexible Pavements written by Steven W. Perkins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Geogrids categories.

This report provides an appendix for the report with the reference: Perkins, S.W. (2001) Mechanistic Empirical Modeling and Design Model Development of Geosynthetic Reinforced Flexible Pavements: Final Report, Montana Department of Transportation, Helena, Montana, FHWA/MT 01 002/99160 1A, 156p. This report contains output from the software program DARWin for each design example provided in Appendix B of the above referenced report.

Nonlinear Finite Element Analysis And Design Of Flexible Pavements

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Author : Ming-Shan Yeh
language : en
Publisher:
Release Date : 1989

Nonlinear Finite Element Analysis And Design Of Flexible Pavements written by Ming-Shan Yeh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Finite element method categories.

Design And Evaluation Of Rigid And Flexible Pavements

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Author : National Research Council (U.S.). Transportation Research Board
language : en
Publisher:
Release Date : 1990

Design And Evaluation Of Rigid And Flexible Pavements written by National Research Council (U.S.). Transportation Research Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Technology & Engineering categories.

Three Dimensional Finite Element Modeling As A Tool For Flexible Pavement Design And Analysis

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Author : Michael L. Willis
language : en
Publisher:
Release Date : 2005

Three Dimensional Finite Element Modeling As A Tool For Flexible Pavement Design And Analysis written by Michael L. Willis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Finite element method categories.